From: Deepak R Varma Date: Thu, 5 Nov 2020 17:59:28 +0000 (+0530) Subject: drm/tegra: replace idr_init() by idr_init_base() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=41f71629b4c432f8dd47d70ace813be5f79d4d75;p=linux.git drm/tegra: replace idr_init() by idr_init_base() idr_init() uses base 0 which is an invalid identifier for this driver. The new function idr_init_base allows IDR to set the ID lookup from base 1. This avoids all lookups that otherwise starts from 0 since 0 is always unused. References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient") Signed-off-by: Deepak R Varma Signed-off-by: Thierry Reding --- diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index ba9d1c3e7cacf..e4baf07992a4d 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -90,7 +90,7 @@ static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp) if (!fpriv) return -ENOMEM; - idr_init(&fpriv->contexts); + idr_init_base(&fpriv->contexts, 1); mutex_init(&fpriv->lock); filp->driver_priv = fpriv;